CVE-2024-43639 json
Windows KDC Proxy Remote Code Execution Vulnerability
published 2024-11-12 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-40384
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.9%
- EPSS 8.9% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
Windows KDC Proxy Remote Code Execution Vulnerability
Patch / fix
- Microsoft Windows Server 2025 10.0.26100.2314
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.2314
- Microsoft Windows Server 2019 10.0.17763.6532
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.6532
- Microsoft Windows Server 2022 10.0.20348.2849
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1251
- Microsoft Windows Server 2016 10.0.14393.7515
- Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.7515
- Microsoft Windows Server 2012 6.2.9200.25165
- Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.25165
- Microsoft Windows Server 2012 R2 6.3.9600.22267
- Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.22267
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction
8.94% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows Server 2022
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 (Server Core installation)
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core installation)
Classification
- Weakness
-
- CWE-197 Numeric Truncation Error
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2024-43639
vendor-advisory, patch
Sources
- CVE List CVE-2024-43639
- NVD CVE-2024-43639
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.